HSK C2/W2/V3
Correct

室

/ shì / 
Strokes

Definition

room/work unit/grave/scabbard/family or clan/one of the 28 constellations of Chinese astronomy

Example

As a Noun
room
1
307
307
shì
室

Room 307

2
Huìkèshì
会客室

reception room

As a Noun
shi ［thirteenth of the twenty-eight constellations（二十八宿）in ancient Chinese astronomy］
As a Noun
family; clan
As a Noun
family member or wife
As a Noun
cavity
As a Noun
administrative/working unit